At 3:17, Mel's grandpa heard Pokémon as "Bokémon" in reference to ぼける (bokeru) which means "to go senile." So Mel's grandpa understood that her daughter was about to send him to a retirement home and Mel was simply telling her it wasn't the case (at least this time lol).
Mel might just have what it takes to be a VA, if you ask me. After all, she and Kiara did have an impromptu dialogue-acting in the most recent episode of HoloTalk.